Physiological signal acquisition devices and wearable devices

Abstract

Disclosed is a physiological signal acquisition device. The physiological signal acquisition device may include a first insulating membrane, first absorbent members, and at least two electrodes. At least two first guide grooves may be arranged in a first direction on the first insulating membrane, and the at least two first guide grooves may be insulated from each other. The first absorbent members may be arranged in the at least two first guide grooves and configured to absorb moisture. The at least two electrodes may be configured to contact a skin and acquire physiological signals, wherein the at least two electrodes may cover the at least two first guide grooves and may be attached to surfaces of the first absorbent members near the skin.

1 . A physiological signal acquisition device, comprising:
 a first insulating membrane, wherein at least two first guide grooves are arranged in a first direction on the first insulating membrane, and the at least two first guide grooves are insulated from each other;   first absorbent members configured to absorb moisture, wherein the first absorbent members are arranged in the at least two first guide grooves;   at least two electrodes configured to contact a skin and acquire physiological signals, wherein the at least two electrodes cover the at least two first guide grooves and are attached to surfaces of the first absorbent members near the skin; and   an insulating water-conducting layer configured to guide moisture on a surface of the skin to a side away from the skin.   
     
     
         2 . The physiological signal acquisition device of  claim 1 , further comprising at least one second guide groove arranged in the first direction, wherein each of the at least one second guide groove is positioned between two adjacent first guide grooves of the at least two first guide grooves, and a second absorbent member is arranged in the at least one second guide groove. 
     
     
         3 . The physiological signal acquisition device of  claim 2 , wherein a material of the second absorbent member is the same as a material of the first absorbent members. 
     
     
         4 . The physiological signal acquisition device of  claim 2  wherein the insulating water-conducting layer covers the at least one second guide groove and is attached to a surface of the second absorbent member near the skin. 
     
     
         5 . The physiological signal acquisition device of  claim 4 , wherein the insulating water-conducting layer in each of the at least one second guide groove does not contact a side wall of the second guide groove. 
     
     
         6 . The physiological signal acquisition device of  claim 1 , wherein a cross-section of a side wall of each of the at least two first guide grooves perpendicular to a third direction is approximately Y-shaped, and the third direction is perpendicular to a plane of the first direction and a second direction. 
     
     
         7 . The physiological signal acquisition device of  claim1 , wherein the first insulating membrane is a grid structure. 
     
     
         8 . The physiological signal acquisition device of  claim 1 , further comprising a second insulating membrane, wherein the second insulating membrane is positioned on a side of the physiological signal acquisition device away from the skin. 
     
     
         9 . The physiological signal acquisition device of  claim 8 , wherein the second insulating membrane is a grid structure. 
     
     
         10 . The physiological signal acquisition device of  claim 8 , wherein a material of the first insulating membrane or a material of the second insulating membrane includes at least one of rubber, polymer, or silicone. 
     
     
         11 . The physiological signal acquisition device of  claim 1 , further comprising modified fabric configured to prevent absorbed moisture from conducting transversally in the first direction, wherein the modified fabric is positioned on a side of the physiological signal acquisition device away from the skin. 
     
     
         12 . The physiological signal acquisition device of  claim 1 , wherein the at least two electrodes include conductive fabric electrodes, and the at least two electrodes allow the moisture to penetrate and be absorbed by the first absorbent members. 
     
     
         13 . The physiological signal acquisition device of  claim 1 , wherein a material of the first absorbent members includes sponge or quick-drying material. 
     
     
         14 . The physiological signal acquisition device of  claim 1 , wherein the first direction is parallel to a surface of the skin. 
     
     
         15 . The physiological signal acquisition device of  claim 1 , further comprising an anti-slip strip arranged on a first side of the physiological signal acquisition device, wherein the first side is a side of the physiological signal acquisition device along the first direction, and the anti-slip strip is configured to prevent slipping and prevent the moisture from flowing in the first direction. 
     
     
         16 . The physiological signal acquisition device of  claim 15 , further comprising a channel arranged on a second side of the physiological signal acquisition device, wherein the second side is a side of the physiological signal acquisition device along a third direction, and the channel is configured to guide the moisture to flow in the first direction. 
     
     
         17 . A wearable device, comprising a physiological signal acquisition device, wherein the physiological signal acquisition device includes:
 a first insulating membrane, wherein at least two first guide grooves are arranged in a first direction on the first insulating membrane, and the at least two first guide grooves are insulated from each other:   first absorbent members configured to absorb moisture, wherein the first absorbent members are arranged in the at least two first guide grooves;   at least two electrodes configured to contact a skin and acquire physiological signals, wherein the at least two electrodes cover the at least two first guide grooves and are attached to surfaces of the first absorbent members near the skin; and   an insulating water-conducting layer configured to guide moisture on a surface of the skin to a side away from the skin.   
     
     
         18 . The wearable device of  claim 17 , wherein the physiological signal acquisition device further includes modified fabric configured to prevent absorbed moisture from conducting transversally in the first direction, wherein the modified fabric is positioned on a side of the physiological signal acquisition device away from the skin. 
     
     
         19 . The wearable device of  claim 17 , wherein the at least two electrodes include conductive fabric electrodes, and the at least two electrodes allow the moisture to penetrate and be absorbed by the first absorbent members. 
     
     
         20 . The wearable device of  claim 17 , wherein the physiological signal acquisition device further includes an anti-slip strip arranged on a first side of the physiological signal acquisition device, wherein the first side is a side of the physiological signal acquisition device along the first direction, and the anti-slip strip is configured to prevent slipping and prevent the moisture from flowing in the first direction.